Home / 3,018.91-4,165.78-1,742.70

Finding the Fourth Proportional to 3,018.91, 4,165.78 and 1,742.70

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Solution

The fourth proportional to 3,018.91, 4,165.78 and 1,742.70 is: 2,404.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.91 : 4,165.78 = 1,742.70 : x
  2. Step 2: Convert to fraction form
    3,018.91/4,165.78 = 1,742.70/x
  3. Step 3: Cross multiply
    3,018.91x = 4,165.78 × 1,742.70
  4. Step 4: Simplify right side
    3,018.91x = 7,259,704.81
  5. Step 5: Solve for x
    x = 7,259,704.81/3,018.91
  6. Step 6: Final answer
    x = 2,404.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.